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我在尝试从 Android 应用程序将图像上传到网络服务器时遇到致命异常：AsyncTask #1。我正在使用 Bitmap 和 BitmapFactory 对图像进行编码。

    @Override
protected Void doInBackground(Void... params) {

    Bitmap bitmapOrg = BitmapFactory.decodeFile(this.path);

    ByteArrayOutputStream bao = new ByteArrayOutputStream();

    if (bitmapOrg == null)
    {
        return null;
    }


    bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 90, bao);

    byte[] data = bao.toByteArray();

    HttpClient httpClient = new DefaultHttpClient();
    HttpPost postRequest = new HttpPost( "http://192.168.20.162/sse_server/up.php" );
    MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);

    //Set Data and Content-type header for the image
    entity.addPart("file", new ByteArrayBody(data, "image/jpeg", "file"));
    postRequest.setEntity(entity);
    try {

        HttpResponse response = httpClient.execute(postRequest);
    //Read the response
        String jsonString = EntityUtils.toString(response.getEntity());
        Log.v("RequestInformation", "after uploading file " + jsonString);

    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return null;
}

这是 LogCat 错误堆栈：

06-18 09:38:30.270: W/dalvikvm(1394): threadid=11: thread exiting with uncaught exception (group=0x40a71930)
06-18 09:38:30.490: E/AndroidRuntime(1394): FATAL EXCEPTION: AsyncTask #1
06-18 09:38:30.490: E/AndroidRuntime(1394): java.lang.RuntimeException: An error occured while executing doInBackground()
06-18 09:38:30.490: E/AndroidRuntime(1394):     at android.os.AsyncTask$3.done(AsyncTask.java:299)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at java.util.concurrent.FutureTask.run(FutureTask.java:239)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at java.lang.Thread.run(Thread.java:856)
06-18 09:38:30.490: E/AndroidRuntime(1394): Caused by: java.lang.OutOfMemoryError
06-18 09:38:30.490: E/AndroidRuntime(1394):     at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:529)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:302)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:328)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at com.example.testapp.HttpTraitement.doInBackground(HttpTraitement.java:75)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at com.example.testapp.HttpTraitement.doInBackground(HttpTraitement.java:1)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at android.os.AsyncTask$2.call(AsyncTask.java:287)
06-18 09:38:30.490: E/AndroidRuntime(1394):     at java.util.concurrent.FutureTask.run(FutureTask.java:234)
06-18 09:38:30.490: E/AndroidRuntime(1394):     ... 4 more

我不知道错误在哪里。请帮忙

4

1 回答 1

1

位图是非常大的内存消耗者。将两个加载到内存中可能是个大问题。解码新位图时应考虑使用 BitmapFactory.Options。
这可以帮助https://stackoverflow.com/a/13363988/1503155

于 2013-06-18T10:03:46.287 回答